一种新型超分子化合物[(C_2N_2H_4)_2Mo_(36)O_(128)]·19H_2O的制备与光催化性能研究  

Preparation and photocatalytic properties of a novel supramolecular compound [(C_2N_2H_4)_2Mo_(36)O_(128)]·19H_2O

作　　者：应俊[1] 牟海晨 田爱香[1] YING Jun;MOU Haiehen;TIAN Aixiang(College of Chemistry and Chemical Engineering,Bohai University,Jinzhou 121013,China)

机构地区：[1]渤海大学化学化工学院,辽宁锦州121013

出　　处：《渤海大学学报（自然科学版）》2018年第3期209-214,共6页Journal of Bohai University:Natural Science Edition

基　　金：国家自然科学基金项目(No:21101015);辽宁省高等学校青年学者成长计划(LJQ2012097)

摘　　要：通过选用铜乙二胺硫酸盐作为反应配体与Anderson型多酸Na_4(H_2O)_7[FeMo_6O_(24)H_6]·2H_2O在室温条件下进行反应,得到了一个结构新颖的超分子型化合物[(C_2N_2H_4)_2Mo_(36)O_(128)]·19H_2O.并通过X-射线衍射、红外光谱以及元素分析等手段表征了所得到的化合物的晶体结构,从所得到的数据我们能够判断化合物晶系为单斜,空间群为C 2/c.晶体学数据如下:a=40. 083?,b=19. 860?,c=25. 629?,α=90°,β=124. 39°,γ=90°,V=16835. 4?~3,Z=4,R1=0. 0732,R_2=0. 1876,GOF=1. 012.一个{Mo_(36)}多阴离子通过两个{Mo_(17)}单元经由两个{MoO_2}^(2+)连接而成,其中心形成了一个大的孔道结构.同时,孔道结构中还存在两个游离的乙二胺配体.由它们共同构成了一个新型的超分子结构.{Mo_(36)}结构单元间通过四个氧原子之间的氢键连接.通过对其光催化性质进行研究,发现所合成的晶体化合物对降解RHB有较高的催化活性.The novel supramolecular compound[ （C2N2H4）2Mo36O128 ] · 19H2O was obtained by reaction of copper ethylenediamine sulfate with Anderson- type polyacid Na4 （H2O）7 [ FeMo6O24H61 · 2H2O at room tem- perature. The structures of the obtained compounds were characterized by X - ray diffraction, FTIR and elemen- tal analysis. The obtained crystal was monoclinic and the space group was C 2/c. The crystallographic data were as follows：a =40. 083 A, b = 19. 860 A, c =25. 629 A, α =90°, β = 124.39°,γ =90°,F-= 16835.4 As, Z = 4,R1 =0.0732,R2 =0. 1876,GOF = 1.012. A {Mo36} polyanion is formed by two {Mo17} units connected via two { MoO2 } 2 ＋ and a large pore structure is formed at its center. At the same time, there are two free ethylenedi- amines in the pore structure. Together, they form a new type of supramolecular structure. The { M036 } structural units are linked by hydrogen bonds between four oxygen atoms. In terms of properties, we studied the photocata- lyric properties of the { Mo36 } structural compounds and found that the synthesized crystalline compounds degra- dation of RHB has a high catalytic activity.

关 键 词：同多钼酸盐簇 红外光谱 光催化 超分子化合物 

分 类 号：O614.8[理学—无机化学]